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MA: Fachverband Magnetismus
MA 55: Non-Skyrmionic Magnetic Textures
MA 55.5: Vortrag
Donnerstag, 19. März 2020, 16:15–16:30, POT 6
Magnetic Domain States in Synthetic Antiferromagnets with Perpendicular Magnetic Anisotropy — •Ruslan Salikhov1, Fabian Samad1, Benny Böhm2, and Olav Hellwig1,2 — 1Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany — 2Chemnitz University of Technology, Chemnitz, Germany
Magnetic multilayers (MLs) with perpendicular magnetic anisotropy (PMA), such as Co/Pt or Co/Pd, are the host materials for a variety of magnetic domain structures, e.g. aligned or labyrinth stripe domains, bubble domains and their mixtures [1]. Interleaving the Co/Pt (or Co/Pd) blocks by Ru or Ir layers tuned to promote antiferromagnetic (AF) interlayer coupling between adjacent PMA ML blocks, results in synthetic antiferromagnets (SAFs) with PMA [2]. The AF interlayer exchange energy alters the typical energy balance and is the source of newly evolving metamagnetic domain states in the corresponding magnetic-phase diagram [3]. Here we demonstrate the stabilisation of metamagnetic bubble domains in the [Co/Pt]8Co/Ru18 SAFs at zero fields and ambient temperature.
[1] K. Chesnel, et al., Phys. Rev. B 98 224404 (2018) [2] O. Hellwig, et al., JMMM 319, 13-55 (2007) [3] N. S. Kiselev, et al., Phys. Rev. B 81, 054409 (2010)